examples: simple script examples used for testing

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

examples/Makefile.am

@@ -1,3 +1,4 @@
+EXTRA_DIST      = monitor-script.sh supervisor-script.sh tempmon.sh
 bin_PROGRAMS    = ex1 ex2
 AM_CFLAGS       = -W -Wall -Wextra -std=gnu99
 AM_CPPFLAGS     = -I$(top_srcdir)/src

examples/monitor-script.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+PID=$(pidof sysrepo-plugind)
+if [ -z "$PID" ]; then
+#    logger -sk -t monitor -I $PPID -p user.error "sysrepo-plugind is not running"
+    exit 0
+fi
+MEM=$(awk '/VmRSS/{print $2}' /proc/$PID/status)
+
+logger -sk -t monitor -I $PPID -p user.notice "sysrepo-plugind memory usage: $MEM kB"
+exit 0

examples/supervisor-script.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+role=$1
+code=$2
+pid=$3
+label=$4
+
+case $code in
+    3)
+	logger -sp user.err -I $$ "process $pid failed a kick, cause $code, restarting service."
+	;;
+    5)
+	logger -sp user.err -I $$ "process $pid failed to meet its deadline, cause $code"
+	logger -sp user.err -I $$ "this cause is unrecoverable, exit 1!"
+	exit 1
+	;;
+    *)
+	;;
+esac
+
+logger -sp user.err -I $$ "system recovered, exit 0"
+exit 0

examples/tempmon.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+TEMP=/sys/class/thermal/thermal_zone0/temp
+
+check()
+{
+    awk '{temp=$1; temp=temp/1000; rc=sprintf("%.1f", temp); exit rc < 55.0 }' < "$1"
+}
+
+if [ ! -f "$TEMP" ]; then
+    logger -sk -t tempmon -I $PPID -p user.warn "No such sensor $TEMP"
+    exit 1
+fi
+
+if check "$TEMP"; then
+    echo "Too hot!"
+    exit 10
+fi